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WO1997018492A1 - Releasing magnet for anti-theft devices for sales goods - Google Patents

Releasing magnet for anti-theft devices for sales goods Download PDF

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Publication number
WO1997018492A1
WO1997018492A1 PCT/CH1996/000378 CH9600378W WO9718492A1 WO 1997018492 A1 WO1997018492 A1 WO 1997018492A1 CH 9600378 W CH9600378 W CH 9600378W WO 9718492 A1 WO9718492 A1 WO 9718492A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnet
housing
permanent magnet
loose
ring
Prior art date
Application number
PCT/CH1996/000378
Other languages
German (de)
French (fr)
Inventor
Heinz Hofstetter
Original Assignee
Maurer, Albert
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maurer, Albert filed Critical Maurer, Albert
Priority to EP96934290A priority Critical patent/EP0861451B1/en
Priority to US09/068,376 priority patent/US6329895B1/en
Priority to DE59610033T priority patent/DE59610033D1/en
Priority to AT96934290T priority patent/ATE230494T1/en
Publication of WO1997018492A1 publication Critical patent/WO1997018492A1/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B73/00—Devices for locking portable objects against unauthorised removal; Miscellaneous locking devices
    • E05B73/0017—Anti-theft devices, e.g. tags or monitors, fixed to articles, e.g. clothes, and to be removed at the check-out of shops
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V15/00—Tags attached to, or associated with, an object, in order to enable detection of the object
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0231—Magnetic circuits with PM for power or force generation
    • H01F7/0252—PM holding devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5004—For antitheft signaling device on protected article

Definitions

  • the invention relates to a loose magnet for theft protection of objects of sale according to the preamble of the independent claim.
  • Anti-theft devices are known on the market, in particular for sales items such as textiles, handbags, etc., which are inserted through the items to be secured. In the event of unauthorized removal, they damage the objects or at least partially destroy them.
  • they consist of a two-part securing body that can be attached to clothes by pushing through. These two parts can only be detached from one another if the one part, which is provided with automatically clamping closing means, is held in a pot-shaped opening on a magnet for detachment. As a result, the closing means are actuated magnetically, the clamping is released and the two parts can be separated and removed from the fabric without damaging it.
  • the loose magnets have a housing consisting of a disc-shaped collar which is screwed to a cylinder.
  • the actual loose magnet a permanent magnet
  • the loose magnet is clamped in the cylinder and secured from below by a plate screwed into the cylinder. All of these elements are made of steel.
  • the loose magnet is secured at the top by a pressed-in U-shaped cover made of light metal or brass. These loose magnets are inserted into a table in a hole and screwed from below so that only the collar protrudes above the surface of the table and its underside rests on the table top without any clearance.
  • the object of the invention is to create a loose magnet of the type mentioned, which on the one hand consists of fewer parts and is therefore cheaper and on the other hand is so easy to clean that hygiene is ensured and any corrosion is largely prevented.
  • Figure 1 shows a loose magnet in supervision
  • Figure 2 shows the loose magnet in side view
  • Figure 3 shows the loose magnet in vertical cross section.
  • the housing 20 can be seen from the loose magnet 1. It has a round collar 21.
  • the dimensions of the recess 22 correspond to the elements of the usual magnetically detachable anti-theft devices.
  • the part of the anti-theft device to be unlocked is held in the recess 22, whereupon the locking pin on the upper part of the anti-theft device can be pulled out of the unlocked part.
  • the housing 20 is shown in the view according to FIG. It has a collar 21 which, when mounted on a table, rests with its underside on the table, the other parts being inside the table itself and not being easily accessible.
  • a first cylindrical socket 26 On the underside of the collar 21 there is a first cylindrical socket 26, which one
  • Magnetic strengthening ring 11 receives.
  • a second cylindrical socket 23 adjoins the first socket 26 at the bottom.
  • This second cylindrical socket 23 comprises the permanent magnet 10.
  • Fastening means 27 are arranged laterally next to the second socket 23 and adjoining this and the first socket 26.
  • the fastening means 27 serve to fasten the loose magnet in a table or the like.
  • the fastening means 27 can be designed as dubelahn receiving points for screws. However, many other types of fastening the loose magnet in a table are also conceivable.
  • FIG. 3 shows the loose magnet in cross section AA according to FIG. 1 in the vertical direction.
  • the housing 20 is in one piece and comprises both the permanent magnet 10 and the magnetic force intensifying ring 11 at least approximately completely and without gaps.
  • the permanent magnet 10 is located in the second version 23 and is covered at the bottom by a base 24.
  • the top is also covered seamlessly by a cover 25.
  • the cover 25 also forms a base for the recess 22, which serves to accommodate the corresponding anti-theft parts.
  • the first socket 26 completely encompasses the magnetic force amplification ring 11. At its top At the end, it merges directly into the collar 21.
  • the depression 22 has flanks which are inclined slightly inwards on the sides and which simultaneously form the inner part of the first mount 26.
  • the fastening elements are designed as side lugs on the second frame 23 and are provided with a vertical bore for receiving screws.
  • the magnetic force amplification ring 11 is arranged approximately centrally to the permanent magnet 10, above it in the housing.
  • the poles of the magnetic reinforcement ring 11 and the permanent magnet 10 are arranged such that similar poles lie directly opposite one another and are adjacent.
  • the loose magnet according to the invention is preferably produced by direct, one-piece encapsulation of the permanent magnet 10 and the magnetic force amplification 11 in a single operation.
  • the magnetic force amplification ring 11 is at a small distance from the permanent magnet 10.
  • Both the permanent magnet 10 and the magnetic reinforcement 11 are almost completely covered by the material of the housing 20. This gives the housing 20 further stability and prevents any undesirably direct contact with the magnetic materials.
  • small ventilation holes must be provided. These are then arranged in the bottom 24 and can then be closed. It is obvious that the loose magnet according to the invention has no gaps, no threads, etc. Therefore, neither air humidity nor cleaning agents can reach either the magnetic force intensifying ring 11 or the permanent magnet 10. These are therefore protected against dirt and corrosion.
  • the plastic housing is washable.
  • the collar 21 as a flat disc that runs outward cannot be gripped by pliers or other tools. It is also not possible to remove the permanent magnet by screwing on the inner parts. Willful damage is practical locked out.
  • the loose magnets according to the invention can also be designed with the housing in such a way that they can be set up on a table, screwed on from above or below and glued on.
  • the collar can also be formed on the lower end of the loose magnet and provided with the fastening elements.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Power Engineering (AREA)
  • Burglar Alarm Systems (AREA)
  • Detergent Compositions (AREA)

Abstract

The proposal is for a releasing magnet (1) for anti-theft devices for sales goods with a permanent magnet (10) and a housing (20) having a disc-shaped collar (21) and means for securing the housing (27) to a table. The housing (20) is made of plastic and at least almost surrounds the permanent magnet (10). On the one hand this prevents corrosion and on the other the releasing magnet (1) can be washed so that its use is hygienic (Fig. 1).

Description

Losemagnet für Diebstahlsicherungen von VerkaufsgegenstandenLoose magnet for theft protection of sales items
Die Erfindung betrifft einen Losemagneten für Diebstahlsicherungen von Verkaufsgegenstanden nach dem Oberbegriff des unabhängigen Patentanspruches.The invention relates to a loose magnet for theft protection of objects of sale according to the preamble of the independent claim.
Auf dem Markt sind Diebstahlsicherungen, insbesondere für Verkaufsgegenstande wie Textilien, Handtaschen usw. bekannt, welche durch die zu sichernden Gegenstande durchgesteckt werden. Beim unberechtigten Entfernen beschädigen sie die Gegenstande oder zerstören sie mindestens teilweise. Beispielsweise bestehen sie aus einem zweiteiligen an Kleidern durch Durchstecken befestigbaren Sicherungskorper. Diese beiden Teile können nur voneinander gelost werden, wenn der eine Teil, welche mit automatisch klemmenden Schliessmitteln versehen ist, in einen topfformige Oeffnung an einem Magneten zum Losen gehalten wird. Dadurch werden die Schliessmittel magnetisch betätigt, die Klemmung gelost und die beiden Teile können getrennt und aus dem Stoff entfernt werden, ohne diesen zu beschädigen. Die Losemagnete weisen ein aus einem scheibenförmigen Kragen, welcher mit einem Zylinder verschraubt ist, bestehendes Gehäuse auf. Der eigentliche Losemagnet, ein Permanentmagnet, ist im Zylinder eingespannt und von unten durch eine in den Zylinder eingeschraubte Platte gesichert. Alle diese Elemente sind aus Stahl. Der Losemagnet ist nach oben gesichert durch einen eingepressten U-formigen Deckel aus Leichtmetall oder Messing. Diese Losemagnete werden in einem Tisch in einer Durchbohrung soweit eingelassen und von unten verschraubt, dass nur der Kragen die Oberflache des Tisches überragt und mit seiner Unterseite auf der Tischplatte ohne Abstand anliegt.Anti-theft devices are known on the market, in particular for sales items such as textiles, handbags, etc., which are inserted through the items to be secured. In the event of unauthorized removal, they damage the objects or at least partially destroy them. For example, they consist of a two-part securing body that can be attached to clothes by pushing through. These two parts can only be detached from one another if the one part, which is provided with automatically clamping closing means, is held in a pot-shaped opening on a magnet for detachment. As a result, the closing means are actuated magnetically, the clamping is released and the two parts can be separated and removed from the fabric without damaging it. The loose magnets have a housing consisting of a disc-shaped collar which is screwed to a cylinder. The actual loose magnet, a permanent magnet, is clamped in the cylinder and secured from below by a plate screwed into the cylinder. All of these elements are made of steel. The loose magnet is secured at the top by a pressed-in U-shaped cover made of light metal or brass. These loose magnets are inserted into a table in a hole and screwed from below so that only the collar protrudes above the surface of the table and its underside rests on the table top without any clearance.
Diese Losemagnete sind sehr teuer, da sie aus mehreren verschraubbaren Teilen bestehen. Sie weisen aus eben diesem Grunde auch keine homogene Oberflache auf. Sie sinα schlecht zu reinigen und neigen zu Korrosion. Besonders anfällig auf Korrosion ist dabei der Magnet, da Luftfeuchtigkeit und Reinigungsmittel zwischen dem Deckel aus Leichtmetall oder Messing und dem Stahlzylinder eindringen kann. Weit verbreitet sind auch Losemagnete, bei welchen die zu losenden Sicherheitselemente direkt auf den Magneten auftreffen und in Kontakt gelangen. Dies fuhrt oft zu beschadigungen und die hoch korrosiven Magnete sind direkt schädlichen Einflössen von aussen ausgesetzt.These loose magnets are very expensive because they consist of several screwable parts. They point out this Basically no homogeneous surface. They are difficult to clean and tend to corrode. The magnet is particularly susceptible to corrosion, since air humidity and cleaning agents can penetrate between the light metal or brass cover and the steel cylinder. Loose magnets are also widespread, in which the security elements to be released strike the magnet directly and come into contact. This often leads to damage and the highly corrosive magnets are directly exposed to harmful influences from outside.
Aufgabe der Erfindung ist es, einen Losemagneten genannter Art zu schaffen, welcher einerseits aus weniger Teilen besteht und daher billiger ist und andererseits so leicht zu reinigen ist, dass die Hygiene gewährleistet ist und allfallige Korrosion weitgehend verhindert ist.The object of the invention is to create a loose magnet of the type mentioned, which on the one hand consists of fewer parts and is therefore cheaper and on the other hand is so easy to clean that hygiene is ensured and any corrosion is largely prevented.
Diese Aufgabe wird durch die in den Patentansprüchen angegebene Erfindung gelost.This object is achieved by the invention specified in the patent claims.
Der erfindungsgemässe Losemagnet für Diebstahlsicherungen wird nachstehend im Zusammenhang mit den Zeichnungen beschrieben. Es zeigen:The loose magnet for anti-theft devices according to the invention is described below in connection with the drawings. Show it:
Figur 1 einen Losemagneten in Aufsicht;Figure 1 shows a loose magnet in supervision;
Figur 2 den Losemagneten in Seitenansicht; undFigure 2 shows the loose magnet in side view; and
Figur 3 den Losemagneten im vertikalen Querschnitt.Figure 3 shows the loose magnet in vertical cross section.
In der Aufsicht nach Figur 1 ist vom Losemagneten 1 nur das Gehäuse 20 zusehen. Es weist einen runden Kragen 21 auf. Darin eingelassen ist eine ebenfalls runde Vertiefung 22 konzentrisch eingelassen. Die Vertiefung 22 entspricht in ihren Massen den Elementen der üblichen magnetisch losbaren Diebstahlsicherungen. Zum losen einer derartigen Diebstahlsicherung wird wie bekannt der zu entriegelnde Teil der Diebstahlsicherung in die Vertiefung 22 gehalten, worauf der Arretierstift am oberen Teil der Diebstahlsicherung aus dem entriegelten Teil herausgezogen werden kann.1, only the housing 20 can be seen from the loose magnet 1. It has a round collar 21. A recess 22, which is also round, is embedded therein concentrically. The dimensions of the recess 22 correspond to the elements of the usual magnetically detachable anti-theft devices. To solve such Anti-theft device, as is known, the part of the anti-theft device to be unlocked is held in the recess 22, whereupon the locking pin on the upper part of the anti-theft device can be pulled out of the unlocked part.
In der Ansicht nach Figur 2 ist das Gehäuse 20 dargestellt. Es weist einen Kragen 21 auf, welcher, im auf einen Tisch montierten Zustand, mit seiner Unterseite auf dem Tisch aufliegt, wobei die anderen Teile sich ιnnerhalb~dem Tisch selbst befinden und nicht ohne weiteres zugänglich sind. An der Unterseite der Kragens 21 schliesst sich eine erste zylindrische Fassung 26 an, welche einenThe housing 20 is shown in the view according to FIG. It has a collar 21 which, when mounted on a table, rests with its underside on the table, the other parts being inside the table itself and not being easily accessible. On the underside of the collar 21 there is a first cylindrical socket 26, which one
Magnetkraftverstarkungsring 11 aufnimmt. An die erste Fassung 26 schliesst sich nach unten eine zweite zylindrische Fassung 23 an. Diese zweite zylindrische Fassung 23 umfasst den Permanentmagneten 10. Seitlich neben der zweiten Fassung 23, an diese und an die erste Fassung 26 anschliessend sind Befestigungsmittel 27 angeordnet. Die Befestigungsmittel 27 dienen der Befestigung des Losemagneten in einem Tisch oder dergleichen. Die Befestigungsmittel 27 können als dubelahnliche Aufnahmestellen für Schrauben ausgestaltet sein. Es sind aber auch viele andere Arten zur Befestigung des Losemagneten in einem Tisch denkbar.Magnetic strengthening ring 11 receives. A second cylindrical socket 23 adjoins the first socket 26 at the bottom. This second cylindrical socket 23 comprises the permanent magnet 10. Fastening means 27 are arranged laterally next to the second socket 23 and adjoining this and the first socket 26. The fastening means 27 serve to fasten the loose magnet in a table or the like. The fastening means 27 can be designed as dubelahn receiving points for screws. However, many other types of fastening the loose magnet in a table are also conceivable.
Die Figur 3 zeigt den Losemagneten im Querschnitt A-A gemäss der Figur 1 in vertikaler Richtung. Daraus ist gut ersichtlich, dass das Gehäuse 20 emstuckig ist und sowohl Permanentmagnet 10 als auch den Magnetkraftverstarkungsring 11 mindestens annähernd vollständig und spaltfrei umfasst. Der Permanentmagnet 10 befindet sich in der zweiten Fassung 23 und ist nach unten von einem Boden 24 abgedeckt. Nach oben ist der durch eine Abdeckung 25 ebenfalls nahtlos abgedeckt. Die Abdeckung 25 bildet gleichzeitig einen Boden für die Vertiefung 22, welche der Aufnahme der zu entsprechenden Teile von Diebstahlsicherungen dient. Die erste Fassung 26 umfasst den Magnetkraftverstarkungsring 11 vollständig. An seinem oberen Ende geht er direkt über in den Kragen 21. Die Vertiefung 22 weist seitlich leicht einwärts geneigte Flanken auf, welche gleichzeitig den inneren Teil der ersten Fassung 26 bilden. Die Befestigungselemente sind in diesem Beispiel als seitliche Ansätze an der zweiten Fassung 23 ausgestaltet und mit vertikalen Bohrung zur Aufnahme von Schrauben versehen.FIG. 3 shows the loose magnet in cross section AA according to FIG. 1 in the vertical direction. This clearly shows that the housing 20 is in one piece and comprises both the permanent magnet 10 and the magnetic force intensifying ring 11 at least approximately completely and without gaps. The permanent magnet 10 is located in the second version 23 and is covered at the bottom by a base 24. The top is also covered seamlessly by a cover 25. The cover 25 also forms a base for the recess 22, which serves to accommodate the corresponding anti-theft parts. The first socket 26 completely encompasses the magnetic force amplification ring 11. At its top At the end, it merges directly into the collar 21. The depression 22 has flanks which are inclined slightly inwards on the sides and which simultaneously form the inner part of the first mount 26. In this example, the fastening elements are designed as side lugs on the second frame 23 and are provided with a vertical bore for receiving screws.
Der Magnetkraftverstarkungsring 11 ist annähernd zentrisch zum Permanentmagneten 10, oberhalb diesem im Gehäuse angeordnet. Dabei die Pole des Magnetverstarkungsringes 11 und des Permanentmagneten 10 so angeordnet, dass gleichartige Pole einander direkt gegenüber liegen und benachbart sind.The magnetic force amplification ring 11 is arranged approximately centrally to the permanent magnet 10, above it in the housing. The poles of the magnetic reinforcement ring 11 and the permanent magnet 10 are arranged such that similar poles lie directly opposite one another and are adjacent.
Die Herstellung des erfindungsgemassen Losemagneten erfolgt vorzugsweise durch direkten einteiliges Umspritzen des Permanentmagneten 10 und des Magnetkraftverstarkungsπnges 11 in einem einzigen Arbeitsgang. Der Magnetkraftverstarkungsring 11 ist in kleinem Abstand vom Permantentmagneten 10 auf. Sowohl der Permanentmagnet 10, wie auch der Magnetverstarkungsnng 11 sind vom Material des Gehäuses 20 annähernd vollständig umfasst. Dies gibt dem Gehäuse 20 weitere Stabilität und verhindert jeden unerwunschent direkten Kontakt mit den magnetischen Werkstoffen. Aus spritztechnischen Gründen müssen allenfalls kleine Entluftungslocher vorgesehen werden. Diese werden dann im Boden 24 angeordnet und können anschliessend verschlossen werden. Es ist offensichtlich, dass der erfindungsgemässe Losemagnet keine Spalten, keine Gewinde usw. aufweist. Daher kann weder Luftfeuchtigkeit noch Reinigungsmittel weder zum Magnetkraftverstarkungsring 11 noch zum Permanentmagneten 10 gelangen. Diese sind somit gegen Verschmutzung und Korrosion geschützt. Das Kunststoffgehause ist abwaschbar. Der Kragen 21 als flache und gegen aussen auslaufende Scheibe kann nicht von Zangen oder anderen Werkzeugen gefasst werden. Es ist auch nicht möglich, den Permanentmagneten durch Aufschrauben der inneren Teile herauszunehmen. Ein mutwilliges Beschädigen ist praktisch ausgeschlossen. Die erfindungsgemassen Losemagnete können auch mit dem Gehäuse so ausgeführt sein, dass sie auf einem Tisch aufgebaut, von oben oder von unten angeschraubt uder festgeklebt werden können. Dazu kann der kragen auch am unteren Ende des Losemagneten angeformt und mit den Befestigungslementen versehen sein. The loose magnet according to the invention is preferably produced by direct, one-piece encapsulation of the permanent magnet 10 and the magnetic force amplification 11 in a single operation. The magnetic force amplification ring 11 is at a small distance from the permanent magnet 10. Both the permanent magnet 10 and the magnetic reinforcement 11 are almost completely covered by the material of the housing 20. This gives the housing 20 further stability and prevents any undesirably direct contact with the magnetic materials. For reasons of injection technology, small ventilation holes must be provided. These are then arranged in the bottom 24 and can then be closed. It is obvious that the loose magnet according to the invention has no gaps, no threads, etc. Therefore, neither air humidity nor cleaning agents can reach either the magnetic force intensifying ring 11 or the permanent magnet 10. These are therefore protected against dirt and corrosion. The plastic housing is washable. The collar 21 as a flat disc that runs outward cannot be gripped by pliers or other tools. It is also not possible to remove the permanent magnet by screwing on the inner parts. Willful damage is practical locked out. The loose magnets according to the invention can also be designed with the housing in such a way that they can be set up on a table, screwed on from above or below and glued on. For this purpose, the collar can also be formed on the lower end of the loose magnet and provided with the fastening elements.

Claims

Patentansprüche claims
1. Losemagneten (1) für Diebstahlsicherungen von Verkaufsgegenstanden mit einem zylindrischen Permanentmagneten (10) und einem Gehäuse (20) mit einem scheibenförmigen Kragen (21) und Mitteln zum Befestigen des Gehäuses (27) , dadurch gekennzeichnet, dass das Gehäuse (20) einteilig aus Kunststoff besteht und den Permanentmagneten (10) mindestens annähernd- vollständig umfasst .1. loose magnet (1) for theft protection of objects of sale with a cylindrical permanent magnet (10) and a housing (20) with a disc-shaped collar (21) and means for fastening the housing (27), characterized in that the housing (20) in one piece consists of plastic and at least approximately completely includes the permanent magnet (10).
2. Losemagnet nach Anspruch 1, dadurch gekennzeichnet, dass ein Magnetkraftverstarkungsring (11) zentrisch zum Permanentmagneten (10) oberhalb diesem im Gehäuse angeordnet ist, wobei gleichartige Pole des Magnetverstarkungsringes (11) und des Permanentmagneten2. Loose magnet according to claim 1, characterized in that a magnetic force amplification ring (11) is arranged centrally to the permanent magnet (10) above the latter in the housing, with similar poles of the magnetic reinforcement ring (11) and the permanent magnet
(10) einander gegenüber liegen.(10) face each other.
3. Losemagnet nach Anspruch 2, dadurch gekennzeichnet, dass der Magnetkraftverstarkungsring (11) vom Permantentmagneten (10) beabstandet ist, wobei der Magnetverstarkungsnng (11) mindestens annähernd vollständig vom Gehäuse umfasst ist.3. Loose magnet according to claim 2, characterized in that the magnetic force amplification ring (11) is spaced from the permanent magnet (10), the magnet amplification (11) being at least approximately completely encompassed by the housing.
4. Losemanget nach Anspruch 1, dadurch gekennzeichnet, dass das einteilige Gehäuse eine Abdeckung (25) aufweist, welche den Permanentmagneten (10) gegen oben vollständig und spaltlos abdeckt.4. Losemanget according to claim 1, characterized in that the one-piece housing has a cover (25) which completely and gaplessly covers the permanent magnet (10) towards the top.
5. Losemagnet nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Gehäuse (20) durch Umspritzen des Permanentmagneten (10) mit Kunststoff hergestellt ist.5. Loose magnet according to one of claims 1 to 4, characterized in that the housing (20) is made by extrusion-coating the permanent magnet (10) with plastic.
6. Losemagnet nach Anspruch 5, dadurch gekennzeichnet, dass der Permanentmagnet (10) und der Verstarkungsπng (11) spaltlos umspritzt sind. 6. loose magnet according to claim 5, characterized in that the permanent magnet (10) and the Verstarkungsπng (11) are extrusion-coated.
PCT/CH1996/000378 1995-11-14 1996-10-25 Releasing magnet for anti-theft devices for sales goods WO1997018492A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP96934290A EP0861451B1 (en) 1995-11-14 1996-10-25 Releasing magnet for anti-theft devices for sales goods
US09/068,376 US6329895B1 (en) 1995-11-14 1996-10-25 Releasing magnet for anti-theft devices for sales goods
DE59610033T DE59610033D1 (en) 1995-11-14 1996-10-25 SOLVENT MAGNET FOR THEFT PROTECTION OF SALES ITEMS
AT96934290T ATE230494T1 (en) 1995-11-14 1996-10-25 RELEASE MAGNET FOR THEFT DETECTION OF SALES ITEMS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3226/95 1995-11-14
CH322695 1995-11-14

Publications (1)

Publication Number Publication Date
WO1997018492A1 true WO1997018492A1 (en) 1997-05-22

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ID=4251373

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Application Number Title Priority Date Filing Date
PCT/CH1996/000378 WO1997018492A1 (en) 1995-11-14 1996-10-25 Releasing magnet for anti-theft devices for sales goods

Country Status (5)

Country Link
US (1) US6329895B1 (en)
EP (1) EP0861451B1 (en)
AT (1) ATE230494T1 (en)
DE (1) DE59610033D1 (en)
WO (1) WO1997018492A1 (en)

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US7391327B2 (en) * 2005-12-01 2008-06-24 Sensormatic Electronics Corporation Magnetic detacher with open access
CA2630681C (en) * 2005-12-01 2014-11-04 Sensormatic Electronics Corporation Magnetic detacher with open access
CN102360698B (en) * 2005-12-01 2014-11-12 传感电子公司 Magnetic detacher provided with open access
US20070157835A1 (en) * 2005-12-29 2007-07-12 Tracy Kucaba Method for mounting a printing plate on a mounting plate
US20080314468A1 (en) * 2007-06-22 2008-12-25 Jon Houghton Cap or Plate With Electronic Or Magnetic Marker
ATE492892T1 (en) * 2007-10-01 2011-01-15 Albert Maurer RELEASING DEVICE FOR RELEASING MAGNETICALLY RELEASABLE ANTI-THEFT DETECTIONS

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Also Published As

Publication number Publication date
EP0861451B1 (en) 2003-01-02
DE59610033D1 (en) 2003-02-06
ATE230494T1 (en) 2003-01-15
US6329895B1 (en) 2001-12-11
EP0861451A1 (en) 1998-09-02

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